/*
																				
	C O L U M N S																
																				
*/

#block_1 {	/* left column */
	float:left;
	position:relative;
	margin-left:10px;
	width:340px;
}
#block_2 {	/* center column */
	float:left;
	position:relative;
	margin-left:10px;
	margin-bottom:10px;
	width:310px;
}
#block_3 {
	margin-bottom:10px;
	background:ivory;
}
#block_4 {	/* below fold, double column */
	clear:left;
	margin-left:10px;
	width:660px;
	min-height:100px;
	text-align:center;
}
#block_5 {	/* right column */
	float:right;
	position:relative;
	margin-right:10px;
	margin-bottom:10px;
	width:300px;
}